Finding the Fourth Proportional to 109.33, 164.01 and 100.81

Step by Step Solution

1. Step 1: Write the proportion equation
   109.33 : 164.01 = 100.81 : x
2. Step 2: Convert to fraction form
   109.33/164.01 = 100.81/x
3. Step 3: Cross multiply
   109.33x = 164.01 × 100.81
4. Step 4: Simplify right side
   109.33x = 16,533.85
5. Step 5: Solve for x
   x = 16,533.85/109.33
6. Step 6: Final answer
   x = 151.23